Add a python script to install Direct3D 12 SDK components.

This makes it much faster to get started with Direct3D 12 builds,
as you only need to run `python .\misc\scripts\install_d3d12_sdk_windows.py`
then run `scons d3d12=yes`.

This installs DirectX Shader Compiler, Mesa NIR, WinPixEventRuntime
and DirectX 12 Agility SDK.

- Define a default path that uses the locations from the script.
- Now the default path is in "%LOCALAPPDATA%\Godot\build_deps\"
- Updated CI to use this new python script.

Co-Authored-By: Hugo Locurcio <hugo.locurcio@hugo.pro>

.github/workflows/windows_builds.yml

@@ -7,7 +7,7 @@ on:
 env:
   # Used for the cache key. Add version suffix to force clean build.
   GODOT_BASE_BRANCH: master
-  SCONSFLAGS: verbose=yes warnings=extra werror=yes module_text_server_fb_enabled=yes d3d12=yes "dxc_path=${{github.workspace}}/dxc" "mesa_libs=${{github.workspace}}/godot-nir-static"
+  SCONSFLAGS: verbose=yes warnings=extra werror=yes module_text_server_fb_enabled=yes d3d12=yes
   SCONS_CACHE_MSVC_CONFIG: true
 
 concurrency:
@@ -49,27 +49,8 @@ jobs:
       - name: Setup python and scons
         uses: ./.github/actions/godot-deps
 
-      - name: Download pre-built DirectX Shader Compiler
+      - name: Download Direct3D 12 SDK components
-        uses: dsaltares/fetch-gh-release-asset@1.0.0
+        run: python ./misc/scripts/install_d3d12_sdk_windows.py
-        with:
-          repo: Microsoft/DirectXShaderCompiler
-          version: tags/v1.7.2308
-          file: dxc_2023_08_14.zip
-          target: dxc.zip
-
-      - name: Extract pre-built DirectX Shader Compiler
-        run: 7z x dxc.zip -o${{github.workspace}}/dxc
-
-      - name: Download pre-built Mesa-NIR
-        uses: dsaltares/fetch-gh-release-asset@1.0.0
-        with:
-          repo: godotengine/godot-nir-static
-          version: tags/23.1.0-devel
-          file: godot-nir-23.1.0-1-devel.zip
-          target: godot-nir-static.zip
-
-      - name: Extract pre-built Mesa-NIR
-        run: 7z x godot-nir-static.zip -o${{github.workspace}}/godot-nir-static
 
       - name: Setup MSVC problem matcher
         uses: ammaraskar/msvc-problem-matcher@master

drivers/d3d12/SCsub

@@ -25,7 +25,7 @@ env_d3d12_rdd.Append(CPPPATH=["#thirdparty/d3d12ma"])
 
 # Agility SDK.
 
-if env["agility_sdk_path"] != "":
+if env["agility_sdk_path"] != "" and os.path.exists(env["agility_sdk_path"]):
     env_d3d12_rdd.Append(CPPDEFINES=["AGILITY_SDK_ENABLED"])
     if env["agility_sdk_multiarch"]:
         env_d3d12_rdd.Append(CPPDEFINES=["AGILITY_SDK_MULTIARCH_ENABLED"])
@@ -33,7 +33,7 @@ if env["agility_sdk_path"] != "":
 
 # PIX.
 
-if env["pix_path"] != "":
+if env["pix_path"] != "" and os.path.exists(env["pix_path"]):
     env_d3d12_rdd.Append(CPPDEFINES=["PIX_ENABLED"])
     env_d3d12_rdd.Append(CPPPATH=[env["pix_path"] + "/Include"])
 

misc/scripts/install_d3d12_sdk_windows.py

@@ -0,0 +1,98 @@
+#!/usr/bin/env python
+
+import os
+import urllib.request
+import shutil
+
+# Base Godot dependencies path
+deps_folder = os.path.join(f"{os.getenv('LOCALAPPDATA')}", "Godot", "build_deps")
+# DirectX Shader Compiler
+dxc_version = "v1.7.2308"
+dxc_filename = "dxc_2023_08_14.zip"
+dxc_archive = os.path.join(deps_folder, dxc_filename)
+dxc_folder = os.path.join(deps_folder, "dxc")
+# Mesa NIR
+mesa_version = "23.1.0-devel"
+mesa_filename = "godot-nir-23.1.0-1-devel.zip"
+mesa_archive = os.path.join(deps_folder, mesa_filename)
+mesa_folder = os.path.join(deps_folder, "mesa")
+# WinPixEventRuntime
+pix_version = "1.0.231030001"
+pix_archive = os.path.join(deps_folder, f"WinPixEventRuntime_{pix_version}.nupkg")
+pix_folder = os.path.join(deps_folder, "pix")
+# DirectX 12 Agility SDK
+agility_sdk_version = "1.610.4"
+agility_sdk_archive = os.path.join(deps_folder, f"Agility_SDK_{agility_sdk_version}.nupkg")
+agility_sdk_folder = os.path.join(deps_folder, "agility_sdk")
+
+# Create dependencies folder
+if not os.path.exists(deps_folder):
+    os.makedirs(deps_folder)
+
+# DirectX Shader Compiler
+print("[1/4] DirectX Shader Compiler")
+if os.path.isfile(dxc_archive):
+    os.remove(dxc_archive)
+print(f"Downloading DirectX Shader Compiler {dxc_filename} ...")
+urllib.request.urlretrieve(
+    f"https://github.com/microsoft/DirectXShaderCompiler/releases/download/{dxc_version}/{dxc_filename}",
+    dxc_archive,
+)
+if os.path.exists(dxc_folder):
+    print(f"Removing existing local DirectX Shader Compiler installation in {dxc_folder} ...")
+    shutil.rmtree(dxc_folder)
+print(f"Extracting DirectX Shader Compiler {dxc_filename} to {dxc_folder} ...")
+shutil.unpack_archive(dxc_archive, dxc_folder)
+os.remove(dxc_archive)
+print(f"DirectX Shader Compiler {dxc_filename} installed successfully.\n")
+
+# Mesa NIR
+print("[2/4] Mesa NIR")
+if os.path.isfile(mesa_archive):
+    os.remove(mesa_archive)
+print(f"Downloading Mesa NIR {mesa_filename} ...")
+urllib.request.urlretrieve(
+    f"https://github.com/godotengine/godot-nir-static/releases/download/{mesa_version}/{mesa_filename}",
+    mesa_archive,
+)
+if os.path.exists(mesa_folder):
+    print(f"Removing existing local Mesa NIR installation in {mesa_folder} ...")
+    shutil.rmtree(mesa_folder)
+print(f"Extracting Mesa NIR {mesa_filename} to {mesa_folder} ...")
+shutil.unpack_archive(mesa_archive, mesa_folder)
+os.remove(mesa_archive)
+print(f"Mesa NIR {mesa_filename} installed successfully.\n")
+
+# WinPixEventRuntime
+print("[3/4] WinPixEventRuntime")
+if os.path.isfile(pix_archive):
+    os.remove(pix_archive)
+print(f"Downloading WinPixEventRuntime {pix_version} ...")
+urllib.request.urlretrieve(f"https://www.nuget.org/api/v2/package/WinPixEventRuntime/{pix_version}", pix_archive)
+if os.path.exists(pix_folder):
+    print(f"Removing existing local WinPixEventRuntime installation in {pix_folder} ...")
+    shutil.rmtree(pix_folder)
+print(f"Extracting WinPixEventRuntime {pix_version} to {pix_folder} ...")
+shutil.unpack_archive(pix_archive, pix_folder, "zip")
+os.remove(pix_archive)
+print(f"WinPixEventRuntime {pix_version} installed successfully.\n")
+
+# DirectX 12 Agility SDK
+print("[4/4] DirectX 12 Agility SDK")
+if os.path.isfile(agility_sdk_archive):
+    os.remove(agility_sdk_archive)
+print(f"Downloading DirectX 12 Agility SDK {agility_sdk_version} ...")
+urllib.request.urlretrieve(
+    f"https://www.nuget.org/api/v2/package/Microsoft.Direct3D.D3D12/{agility_sdk_version}", agility_sdk_archive
+)
+if os.path.exists(agility_sdk_folder):
+    print(f"Removing existing local DirectX 12 Agility SDK installation in {agility_sdk_folder} ...")
+    shutil.rmtree(agility_sdk_folder)
+print(f"Extracting DirectX 12 Agility SDK {agility_sdk_version} to {agility_sdk_folder} ...")
+shutil.unpack_archive(agility_sdk_archive, agility_sdk_folder, "zip")
+os.remove(agility_sdk_archive)
+print(f"DirectX 12 Agility SDK {agility_sdk_version} installed successfully.\n")
+
+# Complete message
+print(f"All Direct3D 12 SDK components were installed to {deps_folder} successfully!")
+print('You can now build Godot with Direct3D 12 support enabled by running "scons d3d12=yes".')

platform/windows/SCsub

@@ -109,7 +109,7 @@ if env["d3d12"]:
             )
 
     # Agility SDK
-    if env["agility_sdk_path"] != "":
+    if env["agility_sdk_path"] != "" and os.path.exists(env["agility_sdk_path"]):
         agility_dlls = ["D3D12Core.dll", "d3d12SDKLayers.dll"]
         # Whether these are loaded from arch-specific directory or not has to be known at build time.
         target_dir = arch_bin_dir if env["agility_sdk_multiarch"] else "#bin"
@@ -121,7 +121,7 @@ if env["d3d12"]:
             )
 
     # PIX
-    if env["pix_path"] != "":
+    if env["pix_path"] != "" and os.path.exists(env["pix_path"]):
         pix_dll = "WinPixEventRuntime.dll"
         env.Command(
             "#bin/" + pix_dll,

platform/windows/detect.py

@@ -164,6 +164,9 @@ def get_opts():
 
     mingw = os.getenv("MINGW_PREFIX", "")
 
+    # Direct3D 12 SDK dependencies folder
+    d3d12_deps_folder = os.path.join(os.getenv("LOCALAPPDATA"), "Godot", "build_deps")
+
     return [
         ("mingw_prefix", "MinGW prefix", mingw),
         # Targeted Windows version: 7 (and later), minimum supported version
@@ -188,15 +191,31 @@ def get_opts():
         BoolVariable("incremental_link", "Use MSVC incremental linking. May increase or decrease build times.", False),
         ("angle_libs", "Path to the ANGLE static libraries", ""),
         # Direct3D 12 support.
-        ("mesa_libs", "Path to the MESA/NIR static libraries (required for D3D12)", ""),
+        (
-        ("dxc_path", "Path to the DirectX Shader Compiler distribution (required for D3D12)", ""),
+            "mesa_libs",
-        ("agility_sdk_path", "Path to the Agility SDK distribution (optional for D3D12)", ""),
+            "Path to the MESA/NIR static libraries (required for D3D12)",
+            os.path.join(d3d12_deps_folder, "mesa"),
+        ),
+        (
+            "dxc_path",
+            "Path to the DirectX Shader Compiler distribution (required for D3D12)",
+            os.path.join(d3d12_deps_folder, "dxc"),
+        ),
+        (
+            "agility_sdk_path",
+            "Path to the Agility SDK distribution (optional for D3D12)",
+            os.path.join(d3d12_deps_folder, "agility_sdk"),
+        ),
         BoolVariable(
             "agility_sdk_multiarch",
             "Whether the Agility SDK DLLs will be stored in arch-specific subdirectories",
             False,
         ),
-        ("pix_path", "Path to the PIX runtime distribution (optional for D3D12)", ""),
+        (
+            "pix_path",
+            "Path to the PIX runtime distribution (optional for D3D12)",
+            os.path.join(d3d12_deps_folder, "pix"),
+        ),
     ]
 
 
@@ -441,6 +460,16 @@ def configure_msvc(env, vcvars_msvc_config):
             LIBS += ["vulkan"]
 
     if env["d3d12"]:
+        # Check whether we have d3d12 dependencies installed.
+        if not os.path.exists(env["mesa_libs"]) or not os.path.exists(env["dxc_path"]):
+            print("The Direct3D 12 rendering driver requires dependencies to be installed.")
+            print("You can install them by running `python misc\scripts\install_d3d12_sdk_windows.py`.")
+            print("See the documentation for more information:")
+            print(
+                "https://docs.godotengine.org/en/latest/contributing/development/compiling/compiling_for_windows.html"
+            )
+            sys.exit(255)
+
         env.AppendUnique(CPPDEFINES=["D3D12_ENABLED", "RD_ENABLED"])
         LIBS += ["d3d12", "dxgi", "dxguid"]
         LIBS += ["version"]  # Mesa dependency.
@@ -452,15 +481,10 @@ def configure_msvc(env, vcvars_msvc_config):
         arch_subdir = "arm64" if env["arch"] == "arm64" else "x64"
 
         # PIX
-        if env["pix_path"] != "":
+        if env["pix_path"] != "" and os.path.exists(env["pix_path"]):
             env.Append(LIBPATH=[env["pix_path"] + "/bin/" + arch_subdir])
             LIBS += ["WinPixEventRuntime"]
 
-        # Mesa
-        if env["mesa_libs"] == "":
-            print("The Direct3D 12 rendering driver requires mesa_libs to be set.")
-            sys.exit(255)
-
         env.Append(LIBPATH=[env["mesa_libs"] + "/bin"])
         LIBS += ["libNIR.windows." + env["arch"]]
 
@@ -663,16 +687,21 @@ def configure_mingw(env):
 
         arch_subdir = "arm64" if env["arch"] == "arm64" else "x64"
 
+        # Check whether we have d3d12 dependencies installed.
+        if not os.path.exists(env["mesa_libs"]) or not os.path.exists(env["dxc_path"]):
+            print("The Direct3D 12 rendering driver requires dependencies to be installed.")
+            print("You can install them by running `python misc\scripts\install_d3d12_sdk_windows.py`.")
+            print("See the documentation for more information:")
+            print(
+                "https://docs.godotengine.org/en/latest/contributing/development/compiling/compiling_for_windows.html"
+            )
+            sys.exit(255)
+
         # PIX
-        if env["pix_path"] != "":
+        if env["pix_path"] != "" and os.path.exists(env["pix_path"]):
             env.Append(LIBPATH=[env["pix_path"] + "/bin/" + arch_subdir])
             env.Append(LIBS=["WinPixEventRuntime"])
 
-        # Mesa
-        if env["mesa_libs"] == "":
-            print("The Direct3D 12 rendering driver requires mesa_libs to be set.")
-            sys.exit(255)
-
         env.Append(LIBPATH=[env["mesa_libs"] + "/bin"])
         env.Append(LIBS=["libNIR.windows." + env["arch"]])
         env.Append(LIBS=["version"])  # Mesa dependency.